What is the repository?

Deposit the data and be sure it is safely stored, everyone
can find it, use it, and correctly cite it (giving you credit)

What submissions do we
accept?

We accept any linguistic and/or NLP data and tools: corpora,
treebanks, lexica, but also trained language models, parsers, taggers,
MT systems, linguistic web services, etc. We do not strictly require
you to upload the data itself, although it is always better to do it.
Still, you can make a metadata-only record, if required. We also
support online license-signing for immediate availability of
restricted resources.

When uploading language resources, please try to use one of the recommended formats
mentioned in LRT Standards.

Do
I need to create an account to download and/or make a submission?

You can download data and tools with a
license that allows free sharing without any obstacles. Just read
the license and download. This applies to all data with Creative Commons and
tools with open source
licenses.

To download data and tools that require you to sign a
license, you need to log in. To make a submission, you also need to
log in. However, if you are from the academic world, you probably don't
need any new account.

Just click "Login" and search for
your academic institution. To sign in, you can use any account with
an Identity Provider that is a member of EduGAIN federation.

If you don't have an academic account that works with us, let
us know. We will make you a local account.

I see an error logging in

Please let us know through our Help Desk, if you have any trouble logging in.

Ocassionally (usually when you are the first one logging in using your home institution) you might see an error stating "The authentication was successful; however, your identity provider did provide neither your email, eppn nor targeted id." This means your home institution did not send us enough data about you to operate our service; the institution is doing so to protect your personal data. We only require an email and we are following Data Protection Code of Conduct, which helps us convince the institution we won't abuse data about you.

If you have an account with multiple providers and you login with different one each time, you might see error stating "Your email is already associated with a different user.". Please try to use the same provider each time, if that is not possible, let us know and we'll change the default one.

Why
should I submit my data into your repository?

It is free and safe.

We respect your license. We encourage Free Data and believe
it benefits not only users, but also the data providers. However we
accept also more closed data and we can make users sign a license
before downloading your data, if that is what you need.

The data is easy to cite. We provide ready-to-use
one-click citations in BibTex, RIS, and other popular reference
formats. All the citations include permanent links created from persistent identifiers (we use handles for PIDs).
These PIDs are future-proof.

For some data, like text corpora or treebanks, we can provide
additional services, like full-text or even tree-query search.

Why should I submit my
tools?

See "Why should I submit my data into your
repository?". Everything applies to software tools too.

You can just link your version control system (svn, git),
if it is publicly accessible. You can also link your project
page, or demo site.

What is the PID (handle) good for?

It is a special permanent URL. It provides a permanent link that
will resolve correctly even if in some distant future the data is
moved. Thus it should be used as URL in citations.

What is the actual depositing/archiving procedure?

During the submission of digital language resources to the repository, the data undergo a curation
process in order to ensure quality and consistency. We assist you in meeting necessary requirements
for sustainable resource archiving. Data have to be provided with metadata in standard formats
accepted/adopted in the respective communities, persistent identifiers (PIDs) have to be assigned, IPR
issues have to be resolved and clear statements with regard to licensing and possible use of the
resources are to be made.
The depositor is also required to electronically sign a deposition agreement acknowledging the
(s)he is the holder of rights to the data and that (s)he has the right to grant the
rights contained in this licence.
Once the data is indeed deposited in the repository it is assigned a PID for stable reference.

What if I want/need to update the archived data?

Every change to the resources and metadata should be stored as a new version with a new PID.
However if the changes are minimal (e.g., typos or clear mistakes) then contact our Help Desk with
the submission PID and the changes which should be made. It is up to the reviewer to decide whether these changes
should result in a new version or not.

What if I want to withdraw the resources in the future? Can I delete the data?

Yes, in this case contact our Help Desk with the submission PID and the reason.
However, we need to keep a reference that the data was in our repository (because a persistent identifier was issued), so the
administrative metadata will be retained indicating that the data itself were removed.

We have started our own repository, can we somehow move records submitted to the LRT collection?

We can create a tombstone page for the moved record and we can add a notice to that page saying the resource is now at a new location.
The submission is effectively hidden from search, browse and harvesting (oai-pmh), but the PID still resolves.
Thus instead of the actual data, we show a link to the item in your repository.
Please contact the Help Desk for more details.

I don't want / cannot make the data publicly available or make
them available after a specific date. Would you still archive them for me?

In accordance with the advocacy of the research infrastructures and the general development
with respect to Open Access, we strongly encourage the data producers to be as open as possible.
However, in other circumstances we will archive your data even if they will not be publicly available. Please, contact
our Help Desk prior to completing the submission.

How to cite a submissions?

How safe is my
data, if I store it with you?

Quite safe, probably much more than in your computer. Our
storage plan:

All the data in the repository have an on-site backup copy.

There is another off-site copy, so even complete destruction
of our building does not destroy your data.

We check all the copies regularly and should any of them
become corrupted we delete it and make a new one.

We keep at least three copies, one of them off-site, at all
times

What license
should I pick for my data/tool?

We encourage using a free license. A representative selection of free
licenses as well as CC licenses (more appropriate for data) is
available directly during submission. There is a great OPEN License Selector which can guide you through the selection of appropriate license.
If for some reason you need a different license, Contact Us.

Where can I find more information about supported licenses?

The list of licenses currently supported is here.
However, do not hesitate to Contact Us
in case you need your specific license. The licenses can be accompanied by various requirements; eg. limiting to logged in users, filling additional details (purpose) etc.

Why do we strongly prefer real authors to institutions?

It is not about contact, it is about citations, credit and trust. That is why we have separate metadata
fields for authors and for contact person. Contact to a helpdesk is perfect, not acknowledging the
authors of a scholarly work is not. We support the direct citation of data
(https://www.force11.org/datacitation).
That is why we also give them PIDs, create formatted citations, etc. That is the reason we really want proper
authors, so that they get citations and other scientists know whose work they rely on.

How do I get the most of my searches?

In contrast to other search engines this one uses OR as a default operator; see examples below that clarify this. If you are not satisfied with the results of your searches, you might wish to go beyond plain text searches.
You may search only in certain fields, use negation, add score (emphasis) to some parts of the query and match
more. The search engine is SOLR so use it's syntax if you know it or check it in the documentation.

Repository

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THE LINDAT/CLARIN PROJECT (LM2015071 and CZ.02.1.01/0.0/0.0/16_013/0001781; formerly LM2010013) IS FULLY SUPPORTED BY THE MINISTRY OF EDUCATION, SPORTSAND YOUTH OF THE CZECH REPUBLIC UNDER THE PROGRAMME LM OF "LARGE INFRASTRUCTURES".